Safety-tread.



H. c. SEIPP.

SAFETY TREAD.

APPLICATION FILED JUNE 26. 1911.

1,015,642. Patented Jan 23 1912.

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' SAFETY-TREAT).

1,015,642. Specification of Letters Patent. patented Jan. 9

Appllcatioll filed June 26, 1911. Serial N0. 635,435.

holes or openings 5, which are formed there- To all whom it may concern:

' Be it known that I; HENRY C. SEIPP, a 'in in any suitable manner,such'as bypunchresident of Pittsburgh, in the county of Almg, and asshown in Figs. 1 to 6, suc 1 holes legheny and Stateof Pennsylvania,haveinare substantially square in shape. .The 60 8 vented a new anduseful Improvement in holes 1n theplates 2 and 3 register withSafety-Treads; and I do hereby declare the each other, and a flange 6extends upwardly follo i g to b a f ll, l d exact (1 from the upperfaceof the upper plate 2 on cri ti n th of, opposite sides of the holes 5therein, while y invention relates to safety-treads, a llke flange (3'extends upwardly from the 65 u h a r d upon exposed Surfaces t upperface of the lower plate 3 on opposite preve t, slippi g d f preventingth sides of the holes therein and at right.- unwearing f h surfaces glesto the flanges 6, wlnch flanges 6 are The object of my invention is toprovide adapted to fit within and againstthe flanges av cheap, simpleand efiicient safety-tread, 6 by their e e g as at to form a Wall 70 hch can be easily and.quickly manufac; Surrounding sald holes, and suchflanges Q" t ds bl d, as as (me hi h are of greater height than suchflanges 6 lI1 willb 11 he i i ht, t Strong d 1 order that the to facesof such flanges '6,- bl s can b f d f t d d and 6' will be flus 1 witheach other.

' t k t i l, When the two plates 2 and 3 are thus as- 75 T fli d y i eti i t gem sembled together,; they can be connected to:

- erally stated, in. the novel arrangement, cong q Sultable l i Such asy struction and combination of parts, as herev' g between the same,rlveting 1 ol inafter more specifically set forth and deg, and when 80secured I: fastened lead or scribed and particularly pointed out in therubber to form a non-slipping surface,8 can 80 claims, be placed in thespaces 9 formed by such To enable others skilledin'the art to flan Ywhich my invention it pertains to construct I sire the lead or rubber informing and use my improv safety-tread, I will the non-slipp ng)treading surfacea'ican he d crib th same more f ll referring t securedtherein ya suitable cement onthe 5 the accompanying drawing, inwhichinner faces 8' of the flanges 6 and 6',- or Figure'l is a plan viewof my improved n e Secured by keying means, such as safety-tread.Fig.2isasideview ofthesame. y b p d recess s o in g -11'! Fig. 3- is across-section on the line 33, and 8', whi h W 11 be filled up by themate; Fig. 1.,.' Fig. 4' is a like view on theline rial forming suchsurface, and if desired,

8 5 4- 4, Fig. 1 Fig 5 a d 6 r l views carborundum or other suitablefrictional f thetwo pl t loy d. Fi ;7 i a material can be filled orplaced in such tional view showing another orm of the spaces 9 in aplastic or other state to form tread. Fig. 8 is a. plan view of thesame. such surface.

- Fig.- 9 is a. section showing another form In Figs. 9, 10, 11 and 12,the openings or 5 40 0f the invention with the filling omitted. holes 5in the plates 2 and 3 are of substan- Fig. 10 is a. plan :view of thesame. Fig. tially cross shape, in which case the flanges 11 is a. lan,view of -one of the plates em- 6 on the plate 2 are formed at the endsof ployed in Figs. 9 and 10. Fig. 12 is a like the holes 5 therein, andthe flanges 6 on the i view of the other plate. plate 8 ar'e.in theright. angle portions of l 45 Like symbols of reference herein indicatethe holes 5 in such late with their end. like parts in each of thefigures of the draw- Edges githin and a utting against the mgan es i IAs in the drawin 1 repre- I arious other changes and modifications 1sents myf'improved safet -trea which is in the design application andconstruction g 50.c0mposed-of two metal p ates, such as the of mimproved sa'fety'tread may be reu perplate 2 and lower plate 3, andthese sort to, without'dcpartin from the s irit i p tes are preferablyformed from thin of the invention or sacri cing any 0 its sheet metal,such as rolled or caststeel, iron, advantages.

wrought nietal or other suitable hard metal What I claim as 'myinvention and desire 11o 66. to form the base-i for such tread.- \Vithinto secure by Letters Patent is- ,each of the plates 2 and 3 are aseries'of 1. As a new article of manufacture, a

' safety-tread comp registering with each other,

registering Wlth each other,

a tending 11 such same

edges flush witheach other.

nterred fonts was Patenruoi 1,015,642.

ag' correction fellows; Page 1;

same' may conform to thereeord of the in-the- Signed and sala 80th day.mga D- 1 12. F Q

rising two metal base plates having opening within the same safety-treadcomprising tw and flanges ex-y plates havin ten g up from said platesand around registering with eachvother, ofenmgs to form spacesbetweenthe tending llP'ifi'OIil said plat or thereception' of anon-slipping such ofpemngs to form spa e of .manufacture, a material,said lower plate comprising two metal base portions connecting with saopenings 'within the .sameand flanges e'xp from said plates and aroundG. SEIPP, have hereun ofemngs to form spaces between the or thereception of a non-s lipping 15 material, said flanges having theirupper- 3. As a new article of manufacture, a

0 metal base openings within the same and flanges ex- 20 es and aroundces between the or the reception of a non-slipping having recessed idopenings for 25 same holding said material. a

In testimony whereof,'I, the said HENnY to set my hand. I j HENRY O,SEIPP. Witnesses:

T. B. HUMs'nRIEs, J. N. Coons.

i it) is ,herebx certified that in Letters Patent No. 1,015,642,rated-Ja i; 23,1

upon the application-of Henry C. Seipp, of Pittsburgh, Pennsylvania, foran improvement in Safety-Treads,

error appears in the specifioation requirline 105, ii rord design insert a comma;

"and that the said Letters I atent'should this correction thereinthattha p 0. o. BILLINGSQ Acting q pma'.

' safety-tread comp registering with each other,

registering Wlth each other,

a tending 11 such same

edges flush witheach other.

nterred fonts was Patenruoi 1,015,642.

ag' correction fellows; Page 1;

same' may conform to thereeord of the in-the- Signed and sala 80th day.mga D- 1 12. F Q

rising two metal base plates having opening within the same safety-treadcomprising tw and flanges ex-y plates havin ten g up from said platesand around registering with eachvother, ofenmgs to form spacesbetweenthe tending llP'ifi'OIil said plat or thereception' of anon-slipping such ofpemngs to form spa e of .manufacture, a material,said lower plate comprising two metal base portions connecting with saopenings 'within the .sameand flanges e'xp from said plates and aroundG. SEIPP, have hereun ofemngs to form spaces between the or thereception of a non-s lipping 15 material, said flanges having theirupper- 3. As a new article of manufacture, a

0 metal base openings within the same and flanges ex- 20 es and aroundces between the or the reception of a non-slipping having recessed idopenings for 25 same holding said material. a

In testimony whereof,'I, the said HENnY to set my hand. I j HENRY O,SEIPP. Witnesses:

T. B. HUMs'nRIEs, J. N. Coons.

i it) is ,herebx certified that in Letters Patent No. 1,015,642,rated-Ja i; 23,1

upon the application-of Henry C. Seipp, of Pittsburgh, Pennsylvania, foran improvement in Safety-Treads,

error appears in the specifioation requirline 105, ii rord design insert a comma;

"and that the said Letters I atent'should this correction thereinthattha p 0. o. BILLINGSQ Acting q pma'.

Eorrection in Letters Patent No. 1,015,642.:-

It is hereby certified that in Letters Patent No. 1,015,642, granted 'January 23,

'1912, upon the application'of Henry C. Seipp, of Pittsburgh, Pennsylvahia, for an improvement in Safety-Treads, an error appears in theprintsd specification requiring correction as follows: Page 1; line 105,after the Word "design insert a comma;

' and that the said Letters Patent should be with this correctiontherein that the same mny conform to the reqord of the me in the Patent06%.

Signed and sealed this 30th day of Jmj, A. 1)., 1912.

0. 0L BILLINGS, Acting Commissioner of Patents.

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